#view-practice {
  background: var(--bg-primary);
}

/* === 关卡选择 === */
.level-select {
  padding: 20px;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.level-select-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.level-select-header h2 {
  flex: 1;
  font-size: 1.5rem;
}

.level-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.level-card {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  padding: 20px;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: all 0.2s;
  border: 2px solid transparent;
  position: relative;
}

.level-card:hover:not(.locked) {
  transform: translateY(-2px);
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-lg);
}

.level-card.locked {
  opacity: 0.5;
  cursor: not-allowed;
  filter: grayscale(0.5);
}

.level-card.locked::after {
  content: '🔒';
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 1.2rem;
}

.level-card-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent-blue);
  line-height: 1;
}

.level-card-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 8px 0 4px;
}

.level-card-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.level-card-stars {
  font-size: 1.2rem;
}

.level-select-footer {
  text-align: center;
}

/* === 小游戏区域 === */
.level-select-games {
  margin-bottom: 24px;
}

.level-select-games h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
  color: var(--text-secondary);
}

.game-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.game-card {
  background: linear-gradient(135deg, #1a1a4e, #2a2a5e);
  border-radius: var(--border-radius);
  padding: 20px;
  cursor: pointer;
  transition: all 0.2s;
  border: 2px solid rgba(255,217,61,0.2);
  color: #fff;
}

.game-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255,217,61,0.5);
  box-shadow: 0 6px 20px rgba(255,107,107,0.2);
}

.game-card-icon {
  font-size: 2.5rem;
  margin-bottom: 8px;
}

.game-card-name {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.game-card-desc {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
}

/* === 练习区域 === */
.practice-area {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.practice-topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  background: var(--bg-card);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  flex-wrap: wrap;
}

.practice-level-name {
  font-weight: 700;
  font-size: 1.1rem;
}

.practice-stats {
  display: flex;
  gap: 20px;
  margin-left: auto;
}

.stat-item {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.stat-value {
  font-size: 1.2rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.stat-unit {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.practice-round-info {
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.practice-round-info span {
  font-size: 0.9rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.practice-round-info .progress-bar {
  flex: 1;
}

/* === 目标文本 === */
.practice-target {
  flex: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  align-content: center;
  justify-content: center;
  padding: 24px 40px;
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  font-weight: 600;
  line-height: 1.8;
  letter-spacing: 0.5px;
  overflow-y: auto;
  max-width: 1000px;
  margin: 0 auto;
  width: 100%;
}

.practice-target .char {
  position: relative;
  transition: color 0.1s;
  padding: 0 1px;
}

.practice-target .char.correct {
  color: var(--correct);
}

.practice-target .char.incorrect {
  color: var(--incorrect);
  text-decoration: underline;
  text-decoration-style: wavy;
}

.practice-target .char.current {
  background: rgba(9,132,227,0.15);
  border-radius: 4px;
  border-left: 3px solid var(--accent-blue);
  margin-left: -2px;
  animation: blink 1s step-end infinite;
}

.practice-target .char.pending {
  color: #2d3436;
}

@keyframes blink {
  50% { border-color: transparent; background: transparent; }
}

/* === 虚拟键盘 === */
.virtual-keyboard {
  padding: 18px 20px 24px;
  background: var(--bg-card);
  box-shadow: 0 -2px 8px rgba(0,0,0,0.06);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: relative;
}

/* 大写字母关卡的 Shift 提示 */
.virtual-keyboard::before {
  content: '⇧ 按住 Shift 输入大写';
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%) scale(0.9);
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  color: #fff;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(108,92,231,0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 5;
}

.virtual-keyboard.shift-active::before {
  opacity: 1;
  transform: translateX(-50%) scale(1);
  animation: shiftPulse 1.2s ease-in-out infinite;
}

@keyframes shiftPulse {
  0%, 100% { transform: translateX(-50%) scale(1); }
  50% { transform: translateX(-50%) scale(1.06); }
}

.keyboard-row {
  display: flex;
  gap: 6px;
}

.key {
  width: clamp(44px, 5.5vw, 62px);
  height: clamp(44px, 5.5vw, 62px);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 1.4vw, 1.3rem);
  font-weight: 700;
  background: #f1f2f6;
  color: var(--text-primary);
  border: 1px solid var(--border);
  transition: all 0.1s;
}

.key.highlight {
  background: var(--accent-blue);
  color: #fff;
  border-color: var(--accent-blue);
  animation: pulse 1s infinite;
  box-shadow: 0 0 12px rgba(9,132,227,0.4);
}

.key.pressed {
  transform: scale(0.9);
  background: var(--accent-purple);
  color: #fff;
}

.key.finger-left-pinky { background: #ffcdd2; }
.key.finger-left-ring { background: #f8bbd0; }
.key.finger-left-mid { background: #e1bee7; }
.key.finger-left-index { background: #d1c4e9; }
.key.finger-right-index { background: #c5cae9; }
.key.finger-right-mid { background: #bbdefb; }
.key.finger-right-ring { background: #b2ebf2; }
.key.finger-right-pinky { background: #b2dfdb; }

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 12px rgba(9,132,227,0.4); }
  50% { box-shadow: 0 0 20px rgba(9,132,227,0.6); }
}

/* === 练习结果 === */
.practice-result {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.result-card {
  background: var(--bg-card);
  border-radius: 20px;
  padding: 40px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  max-width: 420px;
  width: 90%;
}

.result-card h2 {
  font-size: 1.8rem;
  margin-bottom: 20px;
}

.result-stars {
  margin-bottom: 24px;
  font-size: 2.5rem;
}

.result-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.result-stat {
  padding: 12px;
  background: var(--bg-primary);
  border-radius: var(--border-radius);
}

.result-stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.result-stat-value {
  font-size: 1.4rem;
  font-weight: 700;
}

.result-stat-value.highlight {
  color: var(--accent-purple);
}

.result-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* === 响应式 === */
@media (max-width: 600px) {
  .virtual-keyboard { display: none; }
  .practice-stats { gap: 12px; }
  .stat-item { font-size: 0.9rem; }
  .practice-target { padding: 20px; font-size: 1.5rem; }
  .level-grid { grid-template-columns: 1fr; }
}